3580536

Information

• Patent Grant
• 3580536

• References
• Source

• Patent Number

  3,580,536

• Date Filed

  Not available

• Date Issued

  Tuesday, May 25, 1971
  53 years ago

• CPC

  • A47B23/044 - only foldable
  • A47B23/042 - Book-rests or note-book holders resting on tables
  • A47B2220/0019 - One-piece collapsible book stands made of lightweight material, such as cardboard, by stamping or molding

• US Classifications

  • 248 - Supports
  • 040 - Card, picture, or sign exhibiting